protected override async Task <IAsyncEnumerable <HohoemaListingPageItemBase> > GetPagedItemsImpl(int head, int count)
{
var tail = head + count;
var prevCount = TimelineItems.Count;
if (TimelineItems.Count < tail)
{
while (prevCount == TimelineItems.Count)
{
var nicoRepoResponse = await LoginUserNicoRepoProvider.GetLoginUserNicoRepo(NicoRepoTimelineType.all, _LastItem?.Id);
if (nicoRepoResponse.IsStatusOK)
{
foreach (var item in nicoRepoResponse.TimelineItems)
{
if (CheckCanDisplayTimelineItem(item))
{
TimelineItems.Add(item);
}
}
_LastItem = nicoRepoResponse.LastTimelineItem;
if (nicoRepoResponse.TimelineItems.Count == 0)
{
break;
}
}
else
{
break;
}
}
}
var list = new List <HohoemaListingPageItemBase>();
return(TimelineItems.Skip(head).Take(count).ToArray()
.Select <NicoRepoTimelineItem, HohoemaListingPageItemBase>(item =>
{
var topicType = NicoRepoItemTopicExtension.ToNicoRepoTopicType(item.Topic);
if (topicType == NicoRepoItemTopic.Live_User_Program_OnAirs ||
topicType == NicoRepoItemTopic.Live_User_Program_Reserve ||
topicType == NicoRepoItemTopic.Live_Channel_Program_Onairs ||
topicType == NicoRepoItemTopic.Live_Channel_Program_Reserve)
{
return new NicoRepoLiveTimeline(item, topicType);
}
else if (topicType == NicoRepoItemTopic.NicoVideo_User_Video_Upload ||
topicType == NicoRepoItemTopic.NicoVideo_User_Mylist_Add_Video ||
topicType == NicoRepoItemTopic.NicoVideo_Channel_Video_Upload)
{
return new NicoRepoVideoTimeline(item, topicType);
}
else
{
throw new NotSupportedException(topicType.ToString());
}
})
.ToAsyncEnumerable());
}
private bool CheckCanDisplayTimelineItem(NicoRepoTimelineItem item)
{
var topicType = NicoRepoItemTopicExtension.ToNicoRepoTopicType(item.Topic);
if (!AllowedNicoRepoItemType.Any(x => x == topicType))
{
return(false);
}
if (topicType == NicoRepoItemTopic.Live_User_Program_OnAirs ||
topicType == NicoRepoItemTopic.Live_User_Program_Reserve ||
topicType == NicoRepoItemTopic.Live_Channel_Program_Onairs ||
topicType == NicoRepoItemTopic.Live_Channel_Program_Reserve)
{
if (item.Program != null)
{
// 放送開始が現時点より６時間以上前の場合には既に終了済みとして表示しない
if (item.Program.BeginAt < NiconamaDisplayTime)
{
return(false);
}
}
return(true);
}
else
{
return(true);
}
}
